Heavy duty canned motor pumps that comply with API 685 (American Petroleum Industry) for seal-less centrifugal pumps, are now available through Michael Smith Engineers.
The Nikkiso-KSB range was designed primarily for transferring hydrocarbons, liquids with a low boiling point, liquefied gases and heat transfer media, as well as liquids containing solids.
Its pumps, which provide flow rates to 360m3/h and heads as high as 220 metres, will withstand system pressures up to 40bar and can handle nozzle forces four times higher than API 685 demands.
They also feature centreline supported casings and include wear rings located on the casing as well as the casing cover, helping to minimising maintenance costs.
And the pumps incorporate an automatic thrust balancing system that allows the bearing and thrust washer to function at minimised thrust loads over the usable capacity.
